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1/2/11 10:34 AMDesign and characterization of an electromagnetic energy harvester for vehicle suspensions
Page 1 of 4http://iopscience.iop.org/0964-1726/19/4/045003/
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Design and characterization of an electromagnetic energy harvesterfor vehicle suspensionsAuthor
Lei Zuo, Brian Scully, Jurgen Shestani and Yu Zhou
Affiliations
Department of Mechanical Engineering, State University of New York at Stony Brook, Stony Brook,NY 11794, USA
FURTHER READING
Click any one of the following links to be taken to a website which contains the following documents.
The following are some patents.
1976792_ELECTRIC_SHOCK_ABSORBER3941402_Electromagnetic_shock_absorber4032829_Road_shock_energy_converter5347186_Linear_motion_electric_power_generator5818132_Linear_motion_electric_power_generator6952060_Electromagnetic_linear_generator7357229_Electromagnetic_shock_absorber7362003_Coil_switching_circuit_for_linear_generation
Some more information concerning the harvesting of shock absorberenergy.
electromagnetic energy harvester for vehicle suspensionsRegenerative Shock AbsorberVehicle shock absorber recovers energy
A common method of energy harvesting involves the used ofvibration.
5578877_Apparatus_for_converting_vibratory_motion6897573_Electrical_voltage_generating_device7569952_High_efficiency__inductive_vibration_energy_harvester
Energy harvesting from vibrationGetting Started with Vibration Energy Harvesting_V7
The following are some other new applications and patents.
6982497_Backpack_for_harvesting_electric7168532_Wave_energy_converter__WEC__with_Magnetic_BrakingRenewable_Energy_Data
[email protected] Sauerhttp://www.idea2ic.com/
1/2/11 10:34 AMDesign and characterization of an electromagnetic energy harvester for vehicle suspensions
Page 2 of 4http://iopscience.iop.org/0964-1726/19/4/045003/
Journal
Smart Materials and Structures Create an alert RSS this journal
Issue
Volume 19, Number 4
Citation
Lei Zuo et al 2010 Smart Mater. Struct. 19 045003
doi: 10.1088/0964-1726/19/4/045003
Article References
Tag this article Full text PDF (1.23 MB)
Abstract
During the everyday usage of an automobile, only 10–16% of the fuel energy is used to drive the car—to overcome the resistance from road friction and air drag. One important loss is the dissipation ofvibration energy by shock absorbers in the vehicle suspension under the excitation of road irregularityand vehicle acceleration or deceleration. In this paper we design, characterize and test a retrofitregenerative shock absorber which can efficiently recover the vibration energy in a compact space.Rare-earth permanent magnets and high permeable magnetic loops are used to configure a four-phaselinear generator with increased efficiency and reduced weight. The finite element method is used toanalyze the magnetic field and guide the design optimization. A theoretical model is created toanalytically characterize the waveforms and regenerated power of the harvester at various vibrationamplitudes, frequencies, equilibrium positions and design parameters. It was found that the waveformand RMS voltage of the individual coils will depend on the equilibrium position but the total energywill not. Experimental studies of a 1:2 scale prototype are conducted and the results agree very wellwith the theoretical predictions. Such a regenerative shock absorber will be able to harvest 16–64 Wpower at 0.25–0.5 m s − 1 RMS suspension velocity.
PACS
89.40.Bb Land transportation
02.70.Dh Finite-element and Galerkin methods
46.40.-f Vibrations and mechanical waves
46.55.+d Tribology and mechanical contacts
89.30.-g Energy resources
89.20.Kk Engineering
1/2/11 10:34 AMDesign and characterization of an electromagnetic energy harvester for vehicle suspensions
Page 3 of 4http://iopscience.iop.org/0964-1726/19/4/045003/
Subjects
Computational physics
Environmental and Earth science
Condensed matter: structural, mechanical & thermal
Dates
Issue 4 (April 2010)
Received 6 October 2009 , in final form 20 January 2010
Published 25 February 2010
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Page 4 of 4http://iopscience.iop.org/0964-1726/19/4/045003/
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